| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Principles of international commercial contracts. UNIDROIT official text in English, French, Spanish, Italian and German languages . / Printsipy mezhdunarodnykh kommercheskikh dogovorov. UNIDROIT ofitsialnyy text na angliyskom, frantsuzskom, ispanskom, italyanskom i nemetskom yazykakh . | 978-5-7133-1171-1 (5-7133-1171-6) | 2003 |